AddPac AP500 Ikhtisar Produk - Halaman 9
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Halaman Cetak
VoIP (Voice over IP) Service
VoIP (Voice over IP) Service
AP500 4-Port FXS Analog VoIP Gateway
• Voice Codec
Voice Codec
– G.711 A-Law, G.711 U-Law
– G.726 r16, G.726 r32
– G.729A
– G.723.1 r63, G.723.1 r53
– VAD (Voice Activity Detection) function support
– DTMF relay support (H.323, SIP, MGCP common) based
on RFC2833
• RTP
– Redundant RTP packet transmission in case of severe
Redundant RTP packet transmission in case of severe
packet loss
– Dynamic jitter buffer management and RPT packet jitter
and loss compensation with heuristic & DSP error
concealment
– Static jitter buffer setting support
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– Voice frame per RTP packet number control for each
codec
– In-band ring-back tone support
– Virtual ring-back tone support
– Tone parameter change support
Tone parameter change support
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www.addpac.com
• FAX
FAX
– Fax relay mode supporting T.38, inband-T.38,
bypass mode
– Lost packet compensation with redundant setting in
VoIP
case of T.38 fax relay
– Fax relay mode, rate setting for remote end
– Fax relay mode rate setting for remote end
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